Stowable lower body fitness apparatus providing enhanced muscle engagement, body stability and range of motion

ABSTRACT

A collapsible lower body fitness apparatus is disclosed, providing enhanced gluteal muscle engagement, body stability, and range of motion. The apparatus includes a base, a frame, a line-swiveling assembly, and a gripping device that is horizontally displaced from the line-swiveling assembly&#39;s swivel axis, allowing a user to stabilize themselves in tripod posture during exercise. Thus a user can perform full range of motion for any combination of hip extension and hip abduction under resistance transmitted by a line, all from a central standing position that substantially straddles the swivel axis. This functional framework of elements can be realized through a variety of possible embodiments. While the frame provides space for leaning during exercise, it may otherwise vary in structural design. In all cases, the frame can be collapsed into a stowable position that is substantially parallel with and adjacent to the base, thereby rendering the apparatus portable and stowable.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No.62/060,556, filed Oct. 6, 2014. This application is also related toco-pending applications which also claim benefit of the above-namedprovisional application, the co-pending applications having the docketnumbers KAMINS-002 and KAMINS-004, filed on behalf of the same inventor:Paul Kamins.

FIELD

This invention relates generally to fitness equipment, and moreparticularly to lower body fitness equipment.

BACKGROUND

In addition to being an integral part of an individual's overallfitness, toned and shapely buttocks and legs have also become desirabledue to their perceived physical attractiveness. As a result, the marketfor lower body exercise machines and devices has grown in recent years,especially among women. Many such machines and devices are known in theart.

One class of exercise machine for the buttocks involves aresistance-transmitting line, such as a weight machine cable, coupled ata pullable end with a user's leg. Lower body fitness machines that aredesigned as cable machines can continuously transmit resistance duringextension and/or abduction of the user's hip, which in turn can work thegluteal muscles and enhance sculpting of the buttocks.

But such machines can pose problems. In particular, it can be difficultfor the user of a machine to fully engage all of their gluteal muscles.Furthermore, attempts to do so can compromise their posture, potentiallyleading to discomfort or even injury. Meanwhile, many fitnessenthusiasts desire to exercise their buttocks at home, but they mayprefer not to have to purchase expensive, bulky machinery for thispurpose.

SUMMARY

Various embodiments of an improved stowable lower body fitness apparatusare disclosed, which provide enhanced gluteal muscle engagement, bodystability and range of motion. Unlike other known machines for lowerbody exercise, the present invention safely and efficiently providesmaximal engagement of all gluteal muscles, sparing the user from unduediscomfort and/or wasted effort in the process.

The improved performance of the present invention is facilitated by thestrategic placement of a compact cable-swiveling assembly that enables aresistance-transmitting line to swivel about a vertical swivel axis. Agripping device is positioned relative to the swivel axis to allow foreffective and even exercise of the entire buttocks, along with increasedrange of motion and continuous proper stability and body alignment.

By positioning the grip locus relative to the swivel axis in accordancewith embodiments disclosed below, a new unanticipated synergistic effectis created which leads to optimal gluteal muscle exercise. From a singlestance, the user can perform the full range of any combination of hipextension and/or hip abduction under resistance with either leg, easilyswitching from side to side, all while constantly stabilizing themselvesin a balanced tripod posture.

Furthermore, the frame of this apparatus is capable of folding down intoa state that is substantially parallel with and adjacent to the base,such that the apparatus can be stowed away to avoid wasting space whenit is not in use. This enables home users to exercise their glutealmuscles with the highest efficiency possible, but without the need forlarge and costly equipment continuously taking up room in their home.

In one general aspect, the invention is a stowable lower body fitnessapparatus, comprising: a base; a frame coupled to and supported by thebase, the frame being capable of collapsing into a stowable positionthat is substantially adjacent to and substantially parallel with thebase; a cable-swiveling assembly coupled with the base, thecable-swiveling assembly being configured to engage with aresistance-transmitting cable, to enable a pullable end of the cable toswivel about a vertical swivel axis to allow a user to pull the pullableend with an exercising leg to perform any combination of hip extensionand hip abduction from a single standing position; a gripping deviceconnected to the frame, the gripping device including a plurality ofgrippable areas positioned along a substantially horizontal grip locus,the grip locus being sufficiently positioned relative to the swivel axisto allow the user to stabilize themselves in a tripod posture formed byboth arms and a standing leg during the any combination of hip extensionand hip abduction; and a leaning space passing through the swivel axis,the leaning space having sufficient volume to allow the user to leantheir upper body to achieve full range of exercise motion during the anycombination of hip extension and hip abduction.

In some embodiments, the cable-swiveling assembly and the frame areconfigured to enable a user to pull the pullable end of the cable withan exercising leg to perform hip flexion. In some embodiments, theapparatus further comprises a resistance adjustment system. In someembodiments, the cable-swiveling assembly includes a swiveling pulleycoupled with the resistance-transmitting cable, the swiveling pulleybeing free to swivel about the swivel axis.

In some embodiments, the apparatus further comprises an intermediateguiding pulley positioned no higher than substantially hip height. Insome embodiments, the apparatus further comprises aresistance-activating pulley assembly coupled with the frame, theresistance-activating pulley assembly being configured to engage withthe resistance-transmitting cable to facilitate activation of aresistance-generating element.

In some embodiments, resistance transmitted by theresistance-transmitting cable is generated by lifting of an exerciseweight that is connected to a resistance-bearing end of theresistance-transmitting cable. In some embodiments, the resistancetransmitted by the resistance-transmitting cable is generated bystretching of an elastic resistance band that is connected to aresistance-bearing end of the resistance-transmitting cable.

In some embodiments, the resistance transmitted by theresistance-transmitting cable is generated by bending of a flexibleresistance rod that is connected to a resistance-bearing end of theresistance-transmitting cable. In some embodiments, the resistancetransmitted by the resistance-transmitting cable is generated bytwisting of a torsional resistance disc that is connected to aresistance-bearing end of the resistance-transmitting cable.

In some embodiments, the pullable end of the resistance-transmittingcable is connected to a lower extremity receiving device, the lowerextremity receiving device being configured to receive the user's lowerextremity and thereby engage with the user's leg.

In some embodiments, the gripping device is configured to support a userduring hip adduction. In some embodiments, the gripping device includesa straight bar positioned along a horizontal grip axis. In someembodiments, the gripping device includes a plurality of handlebarspositioned along the grip locus. In some embodiments, the grippingdevice includes two grippable areas positioned substantially at leastshoulders width apart along the grip locus.

In some embodiments, the grip locus is substantially at least forearmlength from the swivel axis. In some embodiments, the gripping device isheight-adjustable. In some embodiments, the apparatus further comprisesa swivel-grip displacement adjustment system, the swivel-grip adjustmentsystem being configured to enable adjustment of displacement between theswivel axis and the grip locus.

In another general aspect, the invention is a stowable lower bodyfitness apparatus, comprising: a base; a frame coupled to and supportedby the base, the frame being capable of collapsing into a stowableposition that is substantially parallel with and adjacent to the base; aswiveling pulley coupled with the base, the swiveling pulley beingconfigured to engage with a resistance-transmitting cable, to enable apullable end of the cable to swivel about a vertical swivel axis toallow a user to pull the pullable end with an exercising leg to performfull range of motion for any combination of hip extension and hipabduction under resistance from a single standing position thatsubstantially straddles the swivel axis; a weightlifting pulley assemblycoupled with the frame, the weightlifting pulley assembly beingconfigured to engage with the cable to facilitate lifting of a liftableexercise weight when the pullable end is pulled with sufficient force; agripping device connected to the frame, the gripping device including aplurality of grippable areas positioned along a substantially horizontalgrip locus, the grip locus being sufficiently positioned relative to theswivel axis to allow the user to stabilize themselves in a tripodposture formed by both arms and a standing leg during the anycombination of hip extension and hip abduction; and a leaning spacepassing through the swivel axis, the leaning space having sufficientvolume to allow the user to lean their upper body to achieve full rangeof exercise motion during the any combination of hip extension and hipabduction.

In another general aspect, the invention is a stowable lower bodyfitness apparatus, comprising: a base; a frame coupled to and supportedby the base, the frame being capable of collapsing into a stowableposition that is substantially parallel with and adjacent to the base; aswiveling pulley coupled with the base, the swiveling pulley beingconfigured to engage with an resistance-transmitting cable, to enable apullable end of the cable to swivel about a vertical swivel axis toallow a user to pull the pullable end with an exercising leg to performfull range of motion for any combination of hip extension and hipabduction under resistance from a single standing position thatsubstantially straddles the swivel axis; a band-stretching pulleyassembly coupled with the frame, the band-stretching pulley assemblybeing configured to engage with the cable to facilitate stretching of anelastic resistance band when the pullable end is pulled with sufficientforce; a gripping device connected to the frame, the gripping deviceincluding a plurality of grippable areas positioned along asubstantially horizontal grip locus, the grip locus being sufficientlypositioned relative to the swivel axis to allow the user to stabilizethemselves in a tripod posture formed by both arms and a standing legduring the any combination of hip extension and hip abduction; and aleaning space passing through the swivel axis, the leaning space havingsufficient volume to allow the user to lean their upper body to achievefull range of exercise motion during the any combination of hipextension and hip abduction.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be more fully understood by reference to the detaileddescription, in conjunction with the following figures, wherein:

FIGS. 1-2 introduce an illustrative embodiment and basic functionalframework of the invention, specifically:

FIG. 1 is a front oblique view of an illustrative embodiment of theuse-for-exercise aspect of the present invention;

FIG. 2 is a perspective view of a functional framework of theillustrative embodiment; and

FIGS. 3-12 introduce exemplary machine embodiments of the invention,specifically:

FIG. 3 is a front oblique view of a possible commercial embodiment ofthe invention with a hinged mono-tube design;

FIG. 4 is a profile view of the embodiment of FIG. 3 being used to fullyperform hip flexion;

FIG. 5A depicts a user 500 using the previous embodiment 300 to performhip extension;

FIG. 5B is a top view of the embodiment of FIG. 3 being used to performsimultaneous hip extension and abduction;

FIG. 5C is a top view of the embodiment of FIG. 3 being used to performhip abduction;

FIG. 5D is a top view of the embodiment of FIG. 3 being used to performhip adduction;

FIG. 6 is a front oblique view of the embodiment of FIG. 3 with itsframe fully collapsed into a stowable position;

FIG. 7 is a front oblique view of an embodiment of the invention with athree legged frame;

FIG. 8A is a front oblique view of the embodiment of FIG. 7 being usedto perform hip extension;

FIG. 8B is a front oblique view of the embodiment of FIG. 7 being usedto perform hip abduction;

FIG. 9A is a front oblique view of the embodiment of FIG. 7 with itsframe being collapsed down into a stowable position;

FIG. 9B is a front oblique view of the embodiment of FIG. 7 with itsframe fully collapsed into the stowable position;

FIG. 9C is a perspective view of the embodiment of FIG. 7 having beenstowed against a wall;

FIG. 10A is a front oblique view of an embodiment of the inventionincluding an elastic band whose length and tension can be adjusted alonga telescoping arm;

FIG. 10B is a profile view of the embodiment of FIG. 10A;

FIG. 10C is a front oblique view of the embodiment of FIG. 10A with itsframe fully collapsed into a stowable position;

FIG. 11A is a front oblique view of an embodiment of the inventionincluding a horizontally compounded elastic band whose tension can beadjusted by a hand crank;

FIG. 11B is a rear view of the embodiment of FIG. 11A;

FIG. 11C is a front oblique view of the embodiment of FIG. 11A with itsframe fully collapsed in the stowable position;

FIG. 12A is a front oblique view of an embodiment of the invention thatcan use the resistance of a general purpose exercise machine; and

FIG. 12B is a front oblique view of the embodiment of FIG. 12A with itsframe fully collapsed into a stowable position.

DETAILED DESCRIPTION

The gluteal muscles are often considered the powerhouse of the body andan essential part of the body's “core,” and as such, they are of centralfocus in strength training and physical fitness. Toning of the glutealmuscles also holds substantial aesthetic appeal, particularly for femalephysiques. However, traditional exercises for targeting the glutealmuscles require weightlifting in a variety of difficult and/oruncomfortable postures.

Given the growing desire among women to build their gluteal muscles, thedemand for more ergonomic exercise equipment that can effectively targetthis area of the body has increased substantially. While someresistance-transmitting line machines seemingly offer comparativelycomfortable gluteal workout routines, their perceived comfort actuallycomes at the expense of optimal gluteal muscle engagement.

The following detailed description corresponds with the accompanyingdrawings. First, the current inventive concept is explained by referenceto a functional framework, and then various possible embodiments aretaught and described. Of central importance is the ability of theseembodiments to be collapsed into an easily stowable and portable state,by the folding of their frame down to be substantially parallel to andadjacent to their base.

Basic Functional Framework

FIGS. 1-2 introduce an illustrative embodiment and basic functionalframework of the invention, specifically: FIG. 1 is a front oblique viewof an illustrative embodiment of the use-for-exercise aspect of thepresent invention; and FIG. 2 is a perspective view of a functionalframework of the illustrative embodiment. These diagrammaticillustrations and explanations help lay groundwork for understanding thebenefits of use of commercial embodiments taught here.

1

FIG. 1 is a front oblique view of an illustrative embodiment of theuse-for-exercise aspect of the present invention. The embodiment shown100 includes a base 102, a frame 104 attached to and supported by thebase 102, a line-swiveling assembly 106 coupled with the base 102, agripping device 108 connected to the frame 104, and a leaning space 110that allows a user to lean their upper body for full range of exercisemotion during any combination of hip extension and hip abduction, whileunder continuous resistance.

Important features of the present invention during use for exercise arehighlighted in this graphically illustrative design 100. The combinationof key structural elements and spatial relationships shown here can berendered in many different possible embodiments. This embodiment 100 isshown mainly for illustrative purposes. It is a simple abstractrepresentation of one of the most basic structurally feasibleembodiments that supports a core functional objective of the invention.A “functional framework” for enabling this core objective is explicatedfurther in connection with FIG. 2, below.

The functional framework is a functional arrangement of key elementswhich enable a user to achieve full range of motion for any combinationof hip extension and hip abduction, all from a single stance. The keyelements and their relative position to each other make up thefunctional framework, which is present in this illustrative embodiment100 and is analyzed in isolation in FIG. 2. The functional framework canbe manifest in many different structural designs, of which theembodiments shown, taught and described in relation to FIGS. 3-12 arebut a few possibilities.

The single stance from which a user can perform all manner of hipextension and hip abduction exercises is a central stance thatsubstantially straddles the swivel axis 116. For the purposes ofdiscussion of the present invention, a user can be said to besubstantially “straddling” the swivel axis 116 if they are standing withsubstantially one leg on either side of the swivel axis 116. From thissingle stance, any combination of hip extension and hip abduction can beproperly performed, with full range of motion of either leg.

In this embodiment, the gripping device 108 includes a plurality ofgrippable areas positioned along a substantially horizontal grip locus112, extended here for illustrative purposes. The grip locus 112 is thelocus passing through all grippable areas, terminating at the outermostgrippable areas. It is shown here as a grip axis, positioned relative tothe line-swiveling assembly 106 to allow a user to lean forward duringexercise to properly stabilize themselves through any combination of hipextension and hip abduction movements. In other embodiments, the griplocus 112 can be angled or curved instead of a straight axis.

The line-swiveling assembly 106 is configured to engage with aresistance-transmitting line 114 to enable a pullable end of the line toswivel about a vertical swivel axis 116, allowing a user to pull thepullable end with an exercising leg to perform full range of motion forany combination of hip extension and hip abduction under resistance,from a single standing position that substantially straddles the swivelaxis 116. In this embodiment, an inelastic weight-bearing resistancecable is being used.

In this embodiment, the line-swiveling assembly 106 comprises aswiveling pulley that is free to swivel about a vertical swivel axis116. Here the pulley 106 is attached directly to the base 102, but canalso be attached to the frame 104 or other connecting structure. Theline 114 is fed into the swiveling pulley 106 substantially verticallyand perpendicular to the initial direction of pulling, which is whatenables its pullable end to swivel freely about the swivel axis 116.

The swiveling pulley shown 106 is able to swivel in a full circle aboutthe swivel axis 116, thereby allowing the pullable end of the line 114to swivel along a swivel arc 118 about the swivel axis 116. Theunobtrusive pulley 106 guides the pullable end in a swivel arc 118 ofconsiderably tight radius, ensuring that a user can accomplish all hipmotions from a single stance that substantially straddles the swivelaxis 116, and under continued resistance through their entire range ofmotion.

From the line-swiveling assembly 106, the resistance-transmitting line114 is then guided across the frame 104. In the embodiment shown, theframe 104 includes a vertical support post 120 attached to the base 102,and a diagonal boom 122 attached to and supported by the support post120. The line 114 is guided along the inside of the boom 122 by aresistance-activating pulley assembly, which in this case is a“weightlifting” pulley assembly comprised of a lower boom pulley 124 andan upper boom pulley 126, after which the cable 114 then connects toweight 128.

In this embodiment, the resistance-transmitting line 114 is a weightmachine cable configured to lift weight 128 in cooperation with aweightlifting pulley assembly 124, 126 coupled with the frame 104. Inother embodiments, the line 114 can transmit resistance generated byother means, such as: via the stretching of an elastic band; or by thebending of a resistance rod (also known as a tension rod), for example.Still other resistance-generating elements may occur to one of ordinaryskill in the art.

The weight 128 can be held steady by a stabilizing cable 130 that runsadjacent to the weightlifting cable's weighted portion 132 (the portiondropping vertically from the upper boom pulley 126 to the weight 128).As shown, the stabilizing cable 130 can be anchored at its top end tothe upper end of the diagonal boom 122, and at its bottom end to thebase 102. This stabilizing cable 130 prevents the weight 128 fromswaying off its vertical axis, and thereby becoming destabilized. Indesigns without the stabilizing cable, the user's form has to be moreprecise to prevent sway of the weight suspended freely from the cable.

In embodiments where the resistance-transmitting cable 114 transmitsresistance that is generated by an elastic resistance band or a flexibleresistance rod, the elastic resistance band can provide linear variableresistance, engaging the muscles with greater resistance as the muscle'sown strength capacity increases. This can lead to increased benefitsduring gluteal exercise. Inclusion of elastic band is taught anddescribed in greater detail below, in connection with FIGS. 10 and 11.

The swiveling pulley 106 of this embodiment is free to fully rotate inits horizontal plane, and also to tilt in its orientation. It isunobtrusive enough to enable a user to stand in close proximity to andstraddle the swivel axis 116. While not exercising, the user can standin a single neutral stance with no resistance applied. However, even asmall displacement of the exercising leg for hip extension and/orabduction can generate resistance.

To emphasize, this versatile swiveling pulley 106 functions as anenhanced line-swiveling assembly, whereby the user is able to performthe full range of any combination of hip extension and hip abductionunder continued resistance, while also returning to the same neutralstance at the end of a given set of leg motions. Such convenience is notmade available by line-swiveling assemblies typically found in the artof lower body fitness machines.

In addition to enabling hip extension and hip abduction, theline-swiveling assembly 106 also can allow for nearly all degrees offlexion for anterior musculature strengthening that goes beyondenhancement of the gluteal muscles. And with every available motion, theneutral standing position itself encounters no resistance, yet a slightdisplacement in any direction immediately does yield resistance. Thisfeature is optimal for exercise yet not available in conventionalgluteal exercise machines.

Ease of exercise can be further enhanced by a lower extremity receivingdevice (hereinafter referred to as “LERD”) 134 attached to the line'spullable end. In this embodiment, the LERD 134 includes a loop which canreceive a user's foot during exercise. A horizontal opening along adistal portion of the loop can be secured around the user's heel duringhip extension, while the loop in its entirety can wrap around the sideof the user's foot during hip abduction. More highly designed LERDs aredescribed in an accompanying app, and pictured later in this document.

Unlike the bulky pulley assembly of many prior art exercise pulleys, thecustomized pulley 106 of FIG. 1 can enable the LERD 134 to rest on thefloor. The LERD 134 can include structural support that keeps it erectand poised to receive a user's foot, as shown, so that the user can stepin and out with ease. This relieves the user from the need to manuallyengage or disengage the device with their foot, or to change theirfoot's orientation in the device by hand when changing up sets.

This illustrative embodiment 100 also includes a boom hinge 138 whichenables the distal upper end of the diagonal boom 122 to be foldeddownwards so the boom collapses adjacent to and parallel with thevertical support post 120; as well as a post hinge 140, which enablesthe vertical support post 120 to be folded downwards to lie adjacent toand parallel with the base 102. The hinges 138, 140 can be locked intothe closed or open state, to securely fasten the frame in the desiredstate.

2

FIG. 2 is a perspective view of a functional framework of theillustrative embodiment. The functional framework 200 is an isolatedgrouping of key elements of the illustrative embodiment, which togetherare responsible for enabling a core functional objective of the presentinvention. Specifically, the geometrical alignment, spatialrelationship, and relative positioning of these elements enable a userto perform the full range of motion for any combination of hip extensionand hip abduction, all while under continuous resistance, from a singlestanding location and with ideal posture.

The line-swiveling assembly 106 in this case is a swiveling pulley. Itis configured to engage with the resistance-transmitting line 114 toenable its pullable end to swivel about the swivel axis 116. Theswiveling pulley 106 itself is capable of swiveling in a full swivelcircle 202. However, a user need not cross their leg in front of them toextend or abduct their hip. Therefore, the line 114 itself swivelsthrough a swivel arc (see FIG. 1) that is bounded at the user's“12-o′-clock” position, where the frame (not shown) itself extends toguide the line 114.

The gripping device 108 includes a plurality of grippable areaspositioned along a substantially horizontal grip locus 112, where thegrip locus 112 is positioned relative to the swivel axis 116 in a mannerthat allows a user to stabilize themselves in a “tripod posture” (formedby both arms and a standing leg) during any combination of hip extensionand abduction, even when under considerable exercise resistance. In theembodiment shown, the grip locus 112 is a horizontal grip axis.

The grip locus 112 is the locus of points along which all grippableareas lie. It does not actually extend beyond the outermost grippableareas of the gripping device 108, but as it is depicted and labeled inFIGS. 1 and 2, it is shown extending beyond the gripping device 108solely for illustrative purposes. The grip locus 112 need not be astraight axis; it may be curved or bent. It can take any shape thatwould enable a user to perform full range of motion for any combinationof hip extension and hip abduction with proper form.

In this embodiment, the gripping device 108 is a grippable barpositioned along a grip axis 112. This design enables a user to engagethe gripping device 108 in a manner similar to a ballet bar. All hip andother lower body exercises that a ballet dancer might practice with sucha bar would also be available to a user of this embodiment, with theextra benefit of added resistance for more intensely engaging glutealand/or other lower body muscles.

The ballet bar 108 is one possible embodiment of the gripping device. Insome embodiments, the gripping device may be a curved rail or a bentrail, while in other embodiments it may include a set of horizontalhandlebars, or even a set of vertically oriented handles, for example.In each instance, the gripping device 108 is designed and positioned toallow a user to maintain tripod posture all throughout their exercise.

As defined herein, the user can be said to be in “tripod posture” iftheir standing leg adjacent to the swivel pulley and their hands spreadsufficiently wide on the grip axis to allow their torso to lean slightlyopposite their lifting leg.

This positioning requires anterior-posterior separation 136 of the griplocus 112 from the swivel axis 116, allowing their torso to leanslightly opposite their lifting leg. This positioning requiresanterior-posterior separation 336 of the grip locus 312 from the swivelaxis 316, to allow the user's the three stationary limbs to be widelyseparated (a theoretical tripod configuration). This confers maximaltorso stability to resist the torque of the resistance on the liftingleg. This is an important departure from other machines.

The swivel-grip separation 136 is made more clearly visible in FIG. 2 byreference to a depth dimension indicator 204, which indicates thespatial relationship between the swiveling pulley 106 and grippingdevice 108. During exercise, a user must contribute a pulling force 206that is equal and opposite to the force of resistance 208. The forces oneither side of the swivel axis 116 must effectively balance, and it ishelpful for the user themselves to be balanced about the swivel axis116. Since their lower body is posterior to the swivel axis 116, it canbe advantageous for their upper body to be anterior. Similarly, if thelower body moves laterally to one side, the torso can lean slightly tothe opposite lateral side as a counterbalance.

The key functional aspect of the gripping device 108 which allows theuser to maintain tripod posture during any combination of hip extensionand hip abduction under exercise resistance is its position relative tothe cable-swiveling assembly 106: the grip locus 112 is set apart 136from the swivel axis 116. Decoupling 136 these two element alignments112, from 116 provides a far more efficient spatial arrangement for theexercise enthusiast than the prior art under consideration.

While on the one hand, the grip 112 must be in front of the user, on theother hand, the swivel 106 needs to be positioned at the user's feet, sothat the force of resistance is perfectly opposite to and in line withthe exercising leg's movement. If the swivel 106 was not placed at thefeet but further forward instead, then leg movement during abductionwould be complicated by a forward force vector of resistance. This wouldyield especial difficulty at the beginning of leg movement, when theproportion of the forward vector would be largest.

The horizontal displacement 136 of the grip locus 112 from the swivelaxis 106 is made possible in part by an intermediate guiding pulley 124,which in FIG. 1 was referred to as a “lower boom pulley.” Thisintermediate guiding pulley 124 occurs in other embodiments shown anddiscussed herein. This pulley 124 is integral to the functionalframework 200. It enables the swiveling pulley 106 to swivel freely byguiding the cable 114 on an acute angle pathway about the swivelingpulley 106; but by also guiding the cable 114 into an obtuse angle aboutitself 124, it prevents the cable 114 from obstructing the leaning space110.

The intermediate guiding pulley as shown 124 is strategic in itsposition, being located above the line-swiveling assembly, but no higherthan substantially the hip height of a user. But the intermediateguiding pulley 124 need not be located above the swiveling pulley 106 inorder to accomplish its key functional objective. For example, infunctional frameworks of alternative embodiments, it is possible for anintermediate guiding pulley to be located below the swiveling pulley106, such as in the instance of a base thick enough to house a pulley.Such a pulley would still guide the line 114 on a right angle path aboutthe swiveling pulley 106, but in that case, the line 114 would bedirected downward, instead of upward (as shown here).

The intermediate guiding pulley 124 positioned at or below the user'ship height is a key feature of the functional framework 200 that sets itapart from much of the prior art. For example, in known machineembodiments (common cable machine) where a user stands near a swivelingpulley, the design does not introduce an intermediate guiding pulley 124at or below hip height, because such designs do not prioritize the goalof providing a user with optimal gluteal muscle targeting. Instead, theyinclude a guiding pulley that is fixed at the top of a long verticaltrack, which enables the swiveling pulley itself to slide up or down thevertical track and be repositioned at will, depending on the desiredexercise (ranging anywhere from shoulder to arm to leg exercise).

In the embodiment shown, the grip locus 112 is substantially at leastforearm length 136 from the swivel axis 116, thereby enabling strongtripod posture. In other embodiments, the grip locus 112 can be closerto the swivel axis 116, such as hand length, for example. Also, in somepreferred embodiments, the gripping device 108 can be substantially atleast hip height above the floor and/or its grippable areas spansubstantially at least shoulders width, as is the case in FIG. 2.

The grip locus 112 must span the proper width. The grip locus 112 isdefined herein as the locus of points along which all grippable areaslie, and as such, it does not actually extend beyond the outermostgrippable areas of the gripping device 108. To be sure, the grip locus112 as depicted and labeled in FIGS. 1 and 2 is shown extending beyondthe gripping device 108 for illustrative purposes; however, the truegrip locus 112 is coextensive with the gripping device 108, and itterminates where the gripping device 108 itself terminates.

Proper positioning and extension of the grip locus 112 requires that itsextent be wide enough to allow a user to properly perform full range ofmotion during hip extension and/or abduction. Therefore, in addition tothe gripping device 108 being separated from the swivel axis 116, thespan of the gripping device 108 must extend away from the swivel axis116 far enough in both directions as to enable a user to comfortably andeffectively stabilize themselves throughout the full motion of these hipexercises. Abduction requires even more width of the grip axis.

Part and parcel to the benefit conferred by the swivel-grip separation136 is the presence of the leaning space 110 that allows a user to leantheir upper body forward and take full advantage of the swivel-gripseparation 136, as well as the enhanced stability it affords. As theuser lifts their exercising leg, it is natural for the user to wish tolean forward to help them balance their lower body's movement with acounter-force from their upper body. When the user leans forward, thepelvis tilts forward, and increases the available range of hip range ofmotion by 200%, allowing more gluteal work with each set. This idealposture is made possible by the synergistic effect of the combination ofthe leaning space 110 and swivel-grip separation 136.

Due to the harmony of these relationships, a user is able to comfortablyperform any combination of hip extension and abduction from a centralstanding position that substantially straddles the swivel axis 116. Thestrategically small swiveling pulley 106, with its tight swivel radius,provides the clearance to enable the user to stand in this centralposition. By straddling the swivel axis 116, the user is able toovercome the tension of the line 114 with a perfectly opposing forcefrom their exercising leg, as well as deftly balance their upper body byleaning in the direction perfectly opposite their exercising leg.

Such a precise counterpoise of force vectors, with no tangential forcesdisrupting any of the user's exercise movements, is only possible whenthe user avails themselves of this special “swivel straddle” stance. Ifthe user were not straddling the swivel axis 116, they would experienceat least some orthogonal force vector disturbing the arc of their leg'smovement, and/or they would be compelled to supply at least sometwisting and/or torsion of their body to maintain balance. Furthermore,they would have to shuffle their feet to change direction of legmovement and/or to abduct their opposite leg.

All benefits of the swivel straddle stance converge on a common theme:unparalleled efficiency in isolating one's gluteal musculature. Fromthis stance, a user is able to lean into tripod posture and focus thefull force of resistance 208 on their gluteal muscles without having toapply torque from any part of their body. The stance also relieves theuser of the need to reposition their footing or change their body'sorientation for different leg motions, or when switching theirexercising leg. And when the user returns their leg to the uprightstanding position between sets, the line 114 returns to its neutralresting state: thus, freed from any persistent force of resistance 208,their leg can also come to rest.

By enabling this swivel straddle stance, the swivel-grip separation 136and leaning space 110 work naturally together to promote the user's bestposture during gluteal exercise. This enables the user to exercise theirgluteal muscles in an efficient and comfortable manner, making theprocess safer, healthier and more enjoyable. It also promotes superiorgluteal muscle building due not only to a greater range of motion, butalso to a greater strength capacity of the body when exercising in itsnormal, healthy and anatomically preferable bearing.

The embodiment shown offers superior gluteal muscle targeting byenabling a user to execute various leg motions that simultaneouslycomprise both partial hip extension and partial hip abduction. As justone example, studies indicate that a 45 degree lateral leg movementcomprised of half hip extension, half hip abduction, which works thegluteus maximus along the orientation of its fibers, yields optimalresults.

This embodiment and other embodiments discussed below can also enable auser to perform hip rotation, adduction, and even flexion, enhancingtheir lower body workout even further. In addition to allowing more legmovement options with better form, it also allows for change in thetrajectory and/or orientation of the leg within a given repetition, evenenabling such movements as kicks or sweeps. All this can be achievedfrom a single convenient standing position.

Exemplary Machine Embodiments

FIGS. 3-12 show exemplary machine embodiments of the invention and itscentral collapsible and stowable functionalities, specifically: FIGS.3-6 include views of a streamlined design embodiment, its use andcollapsibility; FIGS. 7-9 include views of a three-legged embodiment,its use and collapsibility; FIGS. 10-11 include views of embodimentsincorporating an elastic band, their use and collapsibility, and FIG. 12shows views of an embodiment that cooperates with a general purposemachine.

3

FIG. 3 is a front oblique view of a possible commercial embodiment ofthe invention with a hinged, mon-tube design. This embodiment 300 isunique in providing a design that is both robust and streamlined. Theembodiment 300 includes a base 302, a frame 304 attached to andsupported by the base 302, a line-swiveling assembly 306 coupled withthe base 302, a gripping device 308 connected to the frame 304, and aleaning space 310 that allows a user to lean their upper body for fullrange of hip extension and/or abduction.

While certain elements shown here (such as the frame 304, for example)are unique to this embodiment 300, the same functional framework of FIG.2 is present, and achieving the same benefits here as previouslydiscussed. The structural variations of this embodiment 300 therefore donot depart from the essence of the inventive concept. Instead, thosevariations commingle with and enhance the effectiveness of thefunctional framework, thereby asserting and demonstrating its value evenmore clearly.

In this embodiment 300 the line-swiveling assembly 306 is a swivelingpulley configured to engage with a resistance-transmitting line 312 toenable a pullable end of the cable 312 to swivel about a vertical swivelaxis, thereby allowing a user to pull the pullable end with anexercising leg (via the lower extremity receiving device 314 or “LERD”),to perform full range of motion for any combination of hip extension andhip abduction under resistance, from a single standing position thatsubstantially straddles the swivel axis of the line-swiveling assembly306. Here, a weight machine cable 312 is being used as aresistance-transmitting line.

From the line-swiveling assembly 306, the line 312 is guided across theframe 304 along a pathway laid out by a series of pulleys, discussedbelow. The frame 304 itself includes two angled segments supported andlocked into their use-ready relative positions by an elbow buttresshinge 316. The elbow buttress hinge 316 holds together a diagonal boom318, and a lower support post 320 to which the boom 318 is hingedlyconnected. The lower support post 320 is in turn supported by a basebuttress hinge 322, and hingedly connected to a baseplate 324 attachedto the base 302.

The gripping device 308 is mounted to the diagonal boom 318 via agripping mount 326 which, in this embodiment, includes adjustmentfeatures. The gripping mount 326 includes a grip-elevation adjustmentmechanism 328, which enables the mount to be positioned at any elevationalong the diagonal boom 318 via loosening and retightening of a knurledknob. Adjusting the elevation of the gripping mount 330 along thediagonal boom 318 effectively adjusts the position of the grippingdevice 308 relative to the user.

The gripping mount 326 also includes a grip-depth adjustment mechanism330, which adjusts the position of the gripping device relative to theaxis of the diagonal boom. In this embodiment, the gripping device 308is positioned opposite the diagonal boom 318 from the user'sperspective. The gripping device 308 can be adjusted closer or fartherfrom the diagonal boom 318, by loosening and retightening a knurled knobagainst a slidable adjustment fork. Grip depth adjustment can be usefulfor positioning the gripping device 308 for hip flexion exercise, forexample.

To position the gripping device 308 in front of the diagonal boom 318from the user perspective, the slidable adjustment fork 330 can be fullyremoved from its sleeve, then inserted back into the sleeve from theopposite (user) side of the boom. Both the grip-elevation adjustmentmechanism 328 and the grip-depth adjustment mechanism 330 that arelocated on the gripping mount 326 combine to yield a comprehensiveswivel-grip displacement adjustment system, providing the usersubstantial control over the position of the gripping device 308including its position relative to the swivel axis, and thus relative tothe user.

The line 312 is a weightlifting cable configured to lift weight whenpulled with sufficient force. The weightlifting cable 312 is guidedacross the frame 304 via pulleys. First, it is guided vertically upwardfrom the swiveling pulley 306 to a strategically placed elbow pulley 332inside the elbow of the frame 304, acting as an intermediate guidingpulley 332. It is then guided along the inside of the diagonal boom 318,where it then encounters a boom pulley 334 at the top of the boom 318.The elbow pulley 332 and boom pulley 334 function together as aweightlifting pulley assembly.

A stabilizing cable 336 drops down from the top edge of the diagonalboom 318, running adjacent to the weightlifting cable's weighted portion338. The weightlifting cable 312 itself drops vertically down from theboom pulley 334, connecting at its weighted end to liftable weight 340.The stabilizing cable 336 is connected at its top end to the boom 318and at its bottom end to the base 302, and is held taut between thoseanchor points to keep the liftable weight 340 from swinging. Theliftable weight 340 rests on the weight base 302 when it is not beinglifted.

The embodiment shown 300 achieves a robust but streamlined design. Witha frame 304 that is strong but minimal in its mass, this embodiment 300can function as a weight machine in a home setting, and may be erectedand collapsed at will for easy transport, storage and/or setup and use.Such a system of buttress hinges 316, 322 as shown here allows forcollapsing of the frame 304 down to a stowable state that issubstantially adjacent with and parallel to the base 302.

4

FIG. 4 is a profile view of the embodiment of FIG. 3 being used to fullyperform hip flexion. Relative to gluteal development, flexion exercisecapability is different focus, yet an added bonus. The narrow width ofthe frame 304 from the perspective of a user 400 facilitates theperformance of any desired hip flexion exercises, as shown. Given thatno frame elements extend outside of the narrow profile that is occupiedby the lower support post 320 and the diagonal boom 318, a user'sexercising leg can be flexed directly outward and upward, encounteringno obstructions along the way.

In this figure, a user 400 is using the embodiment of FIG. 3 to performhip flexion. This exercise can be used to target lower body musclesother than the gluteal muscles, such as the iliopsoas, rectus femoris,and tensor fascia latae, as well as the abdominal muscles. The user 400may wish to raise their exercising leg straight in front of them. Thenarrow profile of the frame, and the height-adjustable grip, make thefull range of such straight hip flexion motion possible. The thin widthof the central components of the frame 318, 320 allows for full andunimpeded flexion of the hip-flexing leg.

As shown here, the user 400 can flex their hip under resistance from theline 312 by putting the front of their foot through the socket of theLERD 314. Hip flexion can also be performed swiftly for practicing frontkicks under force of resistance. This profile view illustrates the valueof extending the height of the gripping device 308, which can beachieved by sliding the gripping mount 326 upwards along the diagonalboom 318. Due to the relative weakness of flexor muscles, the weight 340can incrementally be calibrated down as appropriate.

The integral value of the central swivel straddle stance is apparentwhen considering the hip flexion exercise shown. As is the case with hipabduction, for example, hip flexion also can be considerably compromisedby force vectors orthogonal to the direction of motion of the exercisingleg. If the user 400 were not straddling the swivel axis during hipflexion, then the direction in which they pull the line 312 would not bedirectly away from the swiveling pulley 306, and there would be acomponent vector of force that urges the user's exercising leg offcourse.

However, as depicted in FIG. 4, the user 400 is able to straddle theswivel axis due to the low profile design of the swiveling pulley 306and the frame itself. While in this swivel straddle stance, the user 400is able to sweep their leg forward with perfect form. The user 400 canalso just as easily perform any desired combination of hip flexion andabduction, adding as much lateral movement to their exercising leg asthey wish. In that sense, flexion extends the continuum of hip exercisesthat are allowed by the functional framework, to those anterior toabduction. Still no distracting force vectors will result, thanks onceagain to the unobtrusive design elements 318, 320 that enable continuousswivel straddle stance.

5

FIG. 5 is a top view of the embodiment of FIG. 3 being used to perform awide spectrum of angular hip exercises. However, this same set ofexercises can apply to all embodiments. FIG. 5A depicts a user 500 usingthe previous embodiment 300 to perform hip extension. As discussedabove, hip extension is a relatively effective exercise for engaging thegluteus maximus, which is the largest gluteal muscle. It is readilyapparent from this view that the user 500 benefits from being able tolean over the swiveling pulley and the gripping device 308 to facilitatemaximum extension of their exercising leg 502.

An effective tripod posture can only be achieved if the user stands backfrom the gripping device. If the line-swiveling assembly (306, obscuredin FIG. 5A) was not set apart from the grip axis 308, as it is here,then the user 500 would not be able to come to rest by bringing theirexercising leg back to the standing position. Instead, the exercisingleg 502 would have to be advanced farther forward than the standing legto meet the cable-swiveling assembly 308, before returning to a trulyneutral position. By contrast, the swivel straddle stance shown allowsfor “resting neutral.”

FIG. 5B is a top view of the embodiment of FIG. 3 being used to performsimultaneous hip extension and abduction, specifically: half extension,half abduction. The hip has been rotated externally, and the exercisingleg 502 brought 45 degrees laterally from the Sagittal plane. Becausethis movement follows the orientation of the gluteus maximus fibers (andthereby also avoids contraction of the hamstrings), it completelyengages the gluteus maximus: even more so than with pure hip extension.

Hip rotation is made possible by the customized lower extremity device(LERD), described in greater detail above. External (or lateral)rotation of the hip during leg motions that involve some hip abductionactivates the gluteus maximus more so than without rotation of the hip.The leg movement shown here is extremely effective in gluteal muscleexercise: in addition to fully engaging the gluteus maximus, the partialhip abduction also strongly engages the gluteus medius and minimusmuscles. As discussed above, in contrast to the many other knownmachines, here the grip locus is offset from the swivel axis, enablingthe user to lean forward to easily execute full range of motion andyielding far superior muscle activation.

This unique leg movement (called “the 45°” due to the angle of thetrajectory of the exercising leg relative to the Sagittal plane) is thebest combination of hip extension and hip abduction for maximallyengaging the gluteus maximus, and is also of central importance ineffectively engaging all gluteal muscles in general—especially whencombined with external hip rotation, as shown. But in the absence of thedisplacement of the line-swiveling assembly 306 from the gripping device308, this key exercise would not be achievable with proper form.

If the swivel axis of the line-swiveling assembly 306 was not set apartfrom the grip axis of the grip bar 308, the user 500 would be compelledto shift their standing position laterally, so that the cable's pathwayfrom the cable-swiveling assembly 306 to the user's foot was in linewith the movement of their exercising leg 502. Otherwise, leg movementwould be compromised and distracted by a forward-component to the forcevector of resistance. Furthermore, the user 500 would not be able tocome to rest at the end of each repetition, for the same reason as notedabove in connection with FIG. 5A.

FIG. 5C is a top view of the embodiment of FIG. 3 being used to performhip abduction. Since hip abduction heavily engages the gluteus mediusand minimus muscles, it is essential to a well-balanced treatment ofgluteal muscle exercise. Proper form requires a wide grip, as shown.Moreover, separation of the grip locus from the swivel axis isabsolutely essential for enabling the user to fully abduct their hip.

Straight hip abduction presents a classic case of the need for a stabletripod posture in achieving maximal gluteal muscle engagement. Withoutthe user's arms functioning as widely spaced levers, allowing the uppertorso to lean slightly away from the torque of the resisted lifting leg,the back might be strained, and form and range of motion would surely becompromised.

Tripod posture is indispensible to proper hip abduction, yet would notbe possible without displacement of the swivel axis from the grip axis.On the other hand, with the swiveling pulley 306 displaced from thevertical plane of the gripping device 308 as in the present invention,the user 500 can fully abduct their exercising leg 502 with propertripod posture, stabilizing themselves with their arms instead of theirlower back. The customized LERD enables the user to perform hipabduction effectively, without any discomfort to the foot.

Finally, FIG. 5D is a top view of the embodiment of FIG. 3 being used toperform hip adduction. This exercise actually can be used to bettertarget the lowest portion of the gluteus maximus. Because a user 500must stand to the side of the swivel axis when adducting the hip, inorder to keep their exercising leg's 502 motion in line with the line'spathway, a gripping device 1108 of substantial width is advisable, toallow for tripod posture throughout.

When considering this motion, once again the advantage of a horizontaldisplacement between the gripping device 308 and the swiveling pulley306 is clear. The user 500 is able to rest their exercising leg 502before and/or after each repetition of the hip adduction movement. Thisis due to the fact that the pullable end of the resistance-transmittingline is returned to the position of the swiveling pulley 306 once theexercising leg 502 returns to the standing position. In this neutralstate (“resting neutral”), no resistance is activated.

It should also be noted that each of the exercises shown (as well asstill other exercises, such as hip flexion) can be achieved with perfectform from a single standing position that substantially straddles theswivel axis, with continual resistance applied during the entireduration of the exercise, and resistance is inactive upon cessation ofthe exercise. This convenience greatly enhances the qualitativeexperience of gluteal exercise and muscle development.

The critical importance of the highly versatile central “swivelstraddle” stance, in enabling proper form for all manner of glutealexercise with a resistance-transmitting line, is immediately apparent inFIG. 5, and most specifically, FIGS. 5B and 5C. There, the user 500 isclearly able to perform any combination of hip extension and abductionwithout any distracting tangential force vectors compelling theirexercising leg 502 to veer off its intended course. As noted above, thisis also the case for any combination of hip abduction and hip flexion(see FIG. 4) attempted.

To be sure, the swivel straddle stance may seem less important duringstraight hip extension (see FIG. 5A). Extension motions conceivablycould be executed even if the swiveling pulley 306 were directly belowthe gripping device 308, with the user 500 out of swivel straddlestance. But even in this narrow instance, the direction and intensity ofthe force of resistance is more likely to be discontinuous and disruptedif the user 300 is not straddling the swivel axis.

Nonetheless, the overwhelming majority of possible leg motions forwell-rounded gluteal exercise with a cable involve at least some degreeof (if not substantial) hip abduction. In all such cases, exercise isgreatly compromised if the user 500 does not assume swivel straddlestance. This stance exclusively allows the user 500 to perform a widevariety of hip extension and hip abduction combinations with either leg,in full and proper form, without changing position.

6

FIG. 6 is a front oblique view of the embodiment of FIG. 3 with itsframe fully collapsed into a stowable position. The lower support post320 has been folded down to be substantially adjacent to and parallelwith the base 302. It has been released from its locked position withinthe base buttress hinge 322 so that it may move freely into thiscollapsed position. Likewise, the diagonal boom 318 has been releasedfrom its position in the elbow buttress hinge 322 and folded downagainst the lower support post 320.

The gripping mount 326 can be moved upward along the diagonal boom 318so that the gripping device 308 is clear of the base buttress hinge 322.This enables the diagonal boom 318 to fold down fully against the lowersupport post 320. In this collapsed configuration, the entire embodimentis now in an easily stowable position. For example, it could be stowedin a closet, under a table or potentially even a bed.

7

FIG. 7 is a front oblique view of an embodiment of the invention with athree legged frame. The embodiment 700 shares many structural featuresof the previous embodiment 300 such as its base, swiveling pulley,adjustable gripping device, and some aspects of its frame. However, thisframe is unique in its three-legged tripod weightlifting frame design.This design is particularly lightweight, and again is quite easilycollapsible and transportable.

While certain elements shown here (such as the frame, for example) areunique to this embodiment 700, the same functional framework of FIG. 2is present, and achieving the same benefits here as previouslydiscussed. The structural variations of this embodiment 700 therefore donot depart from the essence of the inventive concept. Instead, thosevariations commingle with and enhance the effectiveness of thefunctional framework, thereby asserting and demonstrating its value evenmore clearly.

The embodiment shown 700 includes a base 702, a tripod frame 704hingedly attached to and supported by the base 702, a line-swivelingassembly 706 coupled with the base 702, a gripping device 708 connectedto the frame 704, and a leaning space 710 that allows a user to leantheir upper body for full range of exercise motion during anycombination of hip extension and hip abduction, while under continuousresistance.

As with the earlier embodiment 300, the line-swiveling assembly 706 is apulley configured to engage with a resistance-transmitting line 712 toenable a pullable end of the line 712 to swivel about a vertical swivelaxis, thereby allowing a user to pull the pullable end with their legvia a lower extremity receiving device 714, or “LERD,” to perform fullrange of motion for any combination of hip extension and abduction.

From the line-swiveling assembly 706, the resistance-transmitting line712 is guided across the frame 704 along a pathway that runs along adiagonal boom 716 that is defined by a series of pulleys. Supporting thediagonal boom 716 are two front legs 716, 718 and a central rear leg720, all attached to the base via hinges 717, 719, 721. These legsconverge to provide structural support to the diagonal boom 716.

A trapezoidal support plate 722 is attached to an upper portion of thefront of the two front legs 716, 718 and spans the space between them,and it also abuts the underside of the gripping device 708, supportingit from below. This support plate 722 adds a critical element ofstructural integrity of the entirety of the frame 704, in itserected-for-use state. A metal crossbar 724 extends from the rear leg720, through a hole in the plate 722, and over to the proximal portionof the diagonal boom 716, for still further frame support.

The diagonal boom 716 is attached to the front legs 716, 718 via aknurled knob connector set, which secures the boom 716 tightly in itsdiagonal position relative to the front legs 716, 718, but may beloosened to act as a hinge, and facilitate collapse. The rear leg 720 iscoupled to the diagonal boom via a sliding chamber 726. During collapse,it can act as a hinge relative to the rear leg 720 and it can slide upthe diagonal boom 716. When set for use, it is locked securely to theposition of the boom 716, by way of a locking pin.

From the swiveling pulley 706, the line 714 is guided across the frame704. The line 714 is guided vertically upward from the swiveling pulley706 to an intermediate guiding pulley (not shown) located at theproximal end of the diagonal boom 716, and then diagonally upward alongthe boom 716 to an upper pulley (not shown) at the boom's 716 distalend, after which the line drops to connect to liftable weight 728. Thepair of boom pulleys (not shown here) together comprise a weightliftingpulley assembly.

In this embodiment, the line 714 is a weight machine cable configured tolift weight 728 in cooperation with the weightlifting pulley assembly,and the weight 728 to be lifted is a container of water. This type ofweight complements the portable design of the apparatus itself. Thecontainer can be emptied and easily stored with the apparatus. A metricon the container 728 can indicate weight according to volume of waterfilled.

8

FIGS. 8A and 8B are front oblique views of the embodiment of FIG. 7being used to perform hip extension and hip abduction, respectively.This pair of images graphically illustrates the importance of hipabduction as a supplement to hip extension, for the purpose of attaininga fully sculpted and shapely buttock contour, as well as maximallystrengthening the gluteal musculature and thereby also the body's core.

FIG. 8A is a front oblique view of the embodiment of FIG. 7 being usedto perform hip extension. Hip extension is an efficient movement forexercising the largest gluteal muscle, the gluteus maximus. A user 800leans to shift their weight forward and assume tripod posture with botharms 802 and their standing leg 804, as the fully extend theirexercising leg 806 back. As a result, the gluteus maximus 808 of theexercising leg 806 is engaged.

The LERD 714 includes a loop into which a user can step to insert theirfoot. A horizontal opening along a distal portion of the loop receivesthe user's heel, enabling the LERD 714 to remain securely attachedaround their foot and ankle during leg motion primarily involving hipextension. In this capacity the LERD 714 enables full range of hipextension, without restricting the user's natural tendency to pointtheir toes downward as the leg extends.

Despite the benefits of hip extension, this motion does not exercise thegluteus maximus 808 along the precise orientation of its fibers, nordoes it even engage all of the gluteal muscles (in particular, thegluteus medius and gluteus minimus are not significantly targeted during“pure” hip extension, that is: hip extension that is not at allaccompanied by hip abduction). At least some hip abduction (plusexternal rotation of the hip) is needed to fully activate the gluteusmaximus 808, and indeed substantial hip abduction is required toactivate the glueus medius and minimus muscles.

FIG. 8B is a front oblique view of the embodiment of FIG. 7 being usedto perform hip abduction. The ability to abduct the hip is indispensiblein developing one's gluteal musculature. Straight abduction (shown here)works the gluteus medius and minimus muscles 809, thereby leading tomore balanced buttock strengthening and development, and morewell-rounded appearance. Strategically combining hip extension with hipabduction can exercise all gluteal muscles 808, 809 with maximumefficiency.

For predominantly abducting the hip, the user can insert their footpartially into the LERD 714 so the entire distal portion of its loopwraps around the outside of their foot (rather than surrounding theheel, as in FIG. 8A), shown in FIG. 8B. This technique helps to supportmore of the user's outer foot during hip abduction, than in the case ofleg motion comprised predominantly of hip extension, where the lower legcan more easily absorb the majority of the force of resistancetransmitted from the line 712.

The versatile design of the LERD 714 provides a secure centralattachment to the exercising foot during any combination of hipextension and hip abduction—even abduction that includes external hiprotation (which is particularly beneficial to gluteal maximusstrengthening). The central attachment enables the line 712 to be guidedperpendicularly away from the orientation of the foot of the abductingleg, without in any way interfering with proper form for hip abductionexercise.

The design of the present embodiment 700 greatly facilitates proper formfor hip abduction, just as it does so for hip extension. Here, the user800 can lean forward and assume stable tripod posture with a wide grip802 near pelvis height, thus avoiding the strain of torsion or archingof their back. Furthermore, here the LERD 714 enables the user 800 toabduct their hip without the lateral force from the cable 712 pullingthe front of their foot inward.

Not shown in this figure is an intermediate exercise that is half waybetween the two figures, ½ extension, and ½ abduction, the leg anglingat a 45 degree away from the bar. The ‘45’, allows for simultaneouscontraction of all three gluteus muscles, and with the combination ofthe LERD wrapping the lateral foot, external rotation is added to thegluteal work. The ‘45’ is the single most effective exercise tosimultaneously exercise all three gluteal muscles.

FIGS. 8A and 8B illustrate the wide variety of hip and leg motion thatcan be executed safely and with proper form under resistance, when usingthe embodiment 700. Hip extension as shown in FIG. 8A, hip abduction asshown in FIG. 8B, and/or any combination thereof, can be performed withproper balance and optimal body mechanics. This versatility is due tothe user's tripod posture, enabled by the horizontal spatial separationbetween the grip bar 708 and the swiveling pulley 706, as well as by theleaning space 710 above the frame.

The term “tripod” underscores the enhanced stability of this specificposture that is produced by the user's two arms 802 and their standingleg 804 during exercise. Its execution depends on the swivel-gripseparation. If the grip locus was not separated anteriorly from theswivel axis, then the user's grip would not be anterior to theirstanding leg, and thus they would not be leaning forward and/or downwardwith their grip. In that case, they could not be said to be in tripodposture.

Tripod posture further enables a user to lean away from their exercisingleg to enable it to exert its full range of motion, thereby activatingtheir gluteal muscles to the greatest extent. It also distributes theuser's mass more evenly, thereby providing superior balance. Finally, byenabling the user to appropriately tilt their torso and shift moreweight to their shoulders, it minimizes the potential strain on theirlower back.

By allowing a user to work their gluteal muscles with superiorefficiency and comfort, the present invention enables a user to liftmore weight and perform more assertive movements than other forms ofgluteal exercise generally allow. Furthermore, the ergonomic form andposture supported by the present embodiment facilitates gluteal exercisethrough straight-legged hip extension and hip abduction movements,thereby minimizing joint strain as well.

This enhanced efficiency of movements is only possible because the user800 is able to stand in a central position that substantially straddlesthe swivel axis. FIGS. 8A & 8B highlight well the versatility of thisswivel straddle stance. As the user 800 exercises, they can extendand/or abduct either exercising leg 806 directly outward from theswiveling pulley 806 in whichever direction they wish, with no forcevectors pulling them off course and no need to apply torque with theirbody. In addition, the user 800 can change up their exercise motionwithout having to alter their standing position, without having tocontend with resistance from the cable 712 while resting in thatposition.

In these figures, the weightlifting pulley assembly is shown: theintermediate guiding pulley 810 at the proximal end of the boom 716, andthe upper boom pulley 812 at the distal end of the boom 716. Thestructural integrity of the frame tripod 814 is visible here, as theuser 800 leans into the approximate center of the gripping bar 708 inevery exercise they perform. All legs and the extra frame supportsconverge to provide maximal structural integrity to this central region.

It should be noted that in some embodiments, a similar tripod frame canbe constructed that is the converse of what is shown here: a pair ofrear legs and a single central front leg. While such a tripodconfiguration would not have the same ease of collapsibility, it couldenable the user 800 greater freedom of motion for hip flexion exercise,for example. However, the current design enables a “slide lock”collapsible frame functionality that is explored further in the next setof figures.

As demonstrated, the functional framework explored in FIG. 2 is integralto the benefits described here. The key functional elements, arranged inaccordance with the parameters laid out in this discussion, provide theuser with a superior experience and superior results. And while otherembodiments may include variations on certain structural elements, suchas the configuration of their structural frame or the nature of theirresistance-generating element, they nonetheless employ this samefamiliar functional framework.

9

FIG. 9A is a front oblique view of the embodiment of FIG. 7 with itsframe being collapsed down into a stowable position. This figurerepresents a partially erected, partially collapsed state of the frame:as such, it can be considered an intermediate stage in preparation foreither setup for use, or collapse for stowing. It is therefore just asinstructive for understanding how the frame can be erected and readiedfor use from an initially collapsed position, as in understandingcollapse from an erected position.

As shown, the water container 728 can be alternately engaged with anddisengaged from a terminal locking gate 900 at the load-bearing end ofthe line 712, for use and storage respectively. Furthermore, the watercan be emptied from the container 728 and the container can be foldedfor easy storage and/or transport. For example, the container can bemade of strong but deformable plastic, which can easily fold between theframe 704 and base 702 when in the collapsed state, for example.

The boom 716 can be disengaged from its fixed position relative to therear leg 720 by releasing the locking pin 902 and unlocking the slidingchamber 726. Once unlocked, the sliding chamber 726 is free to sliderelative to the boom shaft 716. Next, the metal crossbar 724 isdisengaged from the boom 716 by releasing the hook on the metal crossbar724 from its corresponding mating element (not shown) on the boom 716.This frees the boom 716 to fold down relative to all three tipod legs716, 718, 720.

Before the boom 716 and rear leg 720 can fully collapse down, they mustfirst be decoupled. This requires that the sliding chamber 726 be slidout towards the distal end of the boom 716, such that the metal crossbar724 can be retracted through the support plate that spans the spacebetween the two front legs 716, 718 directly below the gripping device708. Once this has occurred (as in FIG. 9A), all frame elements are freeto fold down against the plane of the base.

FIG. 9B is a front oblique view of the embodiment of FIG. 7 with itsframe fully collapsed into the stowable position. The locking pin 902that was released from the sliding chamber 726 (thereby enabling thechamber to slide relative to the boom 716) can now be used to secure theframe to the base 702. In particular, the rear leg 720 is shown herereceiving the locking pin 902, which is driven through the rear leg andinto the base 702 itself. The entire embodiment is collapsed to a thinprofile.

FIG. 9C is a perspective view of the embodiment of FIG. 7 stowed againsta wall. With its thin profile, this embodiment 700 offers many storageoptions. A frequent user may wish to simply stow it against a wall 904,for example in an exercise area. Wheels 906, 907 are shown in thisembodiment as design options for easy transport. If towed by the gripbar 708, the base 702 can be supported by the collapsed frame as it isrolled.

10

FIG. 10A is a front oblique view of an embodiment of the inventionincluding an elastic band whose tension can be adjusted along atelescoping arm. The embodiment 1000 shares many structural features ofthe previous embodiments such as its base, swiveling pulley, adjustablegripping device, and some aspects of its frame. However, this frame isunique in its telescoping arm for elastic resistance. This elasticresistance design is robust but also quite easily collapsible andtransportable.

While certain elements shown here (such as the frame, for example) areunique to this embodiment 1000, the same functional framework of FIG. 2is present, and achieving the same benefits here as previouslydiscussed. The structural variations of this embodiment 1000 thereforedo not depart from the essence of the inventive concept. Instead, thosevariations commingle with and enhance the effectiveness of thefunctional framework, thereby asserting and demonstrating its value evenmore clearly.

The embodiment shown 1000 includes a base 1002, a frame 1004 hingedlyattached to and supported by the base 1002, a line-swiveling assembly1006 coupled with the base 1002, a gripping device 1008 connected to theframe 1004, and a leaning space 1010 that allows a user to lean theirupper body for full range of exercise motion during any combination ofhip extension and hip abduction, while under continuous resistance fromthe line 1012.

The frame 1004 itself includes such sub-elements as a vertical supportpost 1016 connected to and supported by the base 1002, the grip supportbar 1008 coupled with and supported by the support post 1016, and atelescoping elastic band arm 1020 (with an extension 1022) attached toand arising from the base 1002. The frame 1004 also includes a pulleycross arm 1018 which extends from the elastic band arm 1020 across thevertical support post 1016 and beyond, hovering above the swivelingpulley 1006.

As with earlier embodiments, the swiveling pulley 1006 engages with aresistance-transmitting line 1012, which can be pulled with anexercising leg via the lower extremity receiving device (LERD) 1014. Theline 1012 is guided vertically upward from the swiveling pulley 1006 toa strategically placed frontal guiding pulley 1024 (the intermediateguiding pulley according to the functional framework) located at thefront terminus of the pulley cross bar, and then guided across the frame1004: horizontally to a rear guiding pulley 1026, located near the rearterminus of the pulley cross arm 1018.

From the rear guiding pulley 1026, the line 1012 is guided verticallyupward along the telescoping arm 1020 and its extension 1022, toultimately connect to an elastic resistance band 1028 via a connectingelement, such as a ring or locking loop. The elastic resistance band1028 itself runs around an elastic band pulley 1030 attached to andistal portion of the arm extension 1022, and then drops down to connectwith an elastic band anchor 1032 (which is connected to the bottom ofthe telescoping arm 1020, near the base 1002).

In the embodiment shown, the telescoping arm 1020 is hingedly attachedto the vertical support post 1016. The vertical support post 1016 itselfis supported and locked into its vertical use-ready position by a basebuttress hinge 1034. The base buttress hinge 1034 holds the verticalsupport post 1016 securely in the vertical position relative to abaseplate 1036, which itself is attached to the base 1002. The supportpost 1016 is hingedly connected to the baseplate 1036, and can be foldeddown when unlocked from the base buttress hinge 1034.

The frontal guiding pulley 1024, rear guiding pulley 1026, and elasticband pulley 1030, function together as a resistance-activating pulleyassembly. This “band-stretching” resistance-activating pulley assemblyfacilitates stretching of the elastic band 1028, which is the means forgenerating resistance against the pulling of the resistance-transmittingline 1012. Alternative resistance-generating elements other than anelastic band, such as liftable weight or a flexible rod a spring, andstill others, will be readily apparent to or within the contemplation ofone of ordinary skill in the art.

In the embodiment shown, the resistance transmitted by the line 1012 isgenerated by the stretching of an interchangeable elastic resistanceband. 1028 when the pullable end of the line 1012 is pulled withsufficient force. Unlike lifted weights, elastic bands can generateresistance that cannot be diminished via quickly accelerated motion. Acombination of bands can be attached to the cable 1312 for addedresistance.

A key advantage of resistance generated by an elastic band 1028 is thelinear variability of its resistance. Linear variable resistance isresistance that increases in roughly linear proportion to the amountthat a band has already been stretched, which many exercise enthusiastsfind particularly beneficial for certain types of exercise. The reasonlinear variable resistance is often considered so advantageous andconducive to muscle building is that it engages muscles with greaterresistance as the muscle's own strength capacity increases, requiringthe greatest pulling force at the very apex of an exercise repetition.

As with earlier embodiments, various components of the frame 1004 may beadjusted. Here, the position of the gripping device 1008 can be adjustedin the vertical dimension. The height of the gripping device 1008 iscontrolled by a grip height adjustment system that extends the verticalsupport post up and down. Furthermore, the tension of a given elasticband 1028 can be adjusted by telescoping arm 1020, given how far itsextension arm 1028 is projected upward.

FIG. 10B is a profile view of the embodiment of FIG. 10A. In this view,the course of the line 1012 from LERD connection, to swivel pulley 1006,to intermediate guiding pulley 1024, and ultimately to the elasticresistance connection 1028 can easily be traced. One hole of thetelescopic extension 1022 can be seen to demonstrate the adjustableheight of the elastic support tower.

Also the connection mechanism of the interchangeable elastic bandattaching to the tower base attachment 1032, and the line attachmentother end, allowing for easy interchange of various different elasticstrength units. In this view, a vertical support post hinge 1038 can beseen inside the base buttress hinge 1034, enabling the vertical supportpost 1016 itself to be folded down adjacent to and parallel with thebase 1002. Also in view in this figure is a telescoping arm hinge 1040,which enables the telescoping arm 1020 to be folded down against thefolded-down vertical support post 1016, once again parallel to the base1002.

FIG. 10C is a front oblique view of the embodiment of FIG. 10A with itsframe fully collapsed into a stowable position. The vertical supportpost 1016 has been folded all the way down against the top surface ofthe base 1002, adjacent to and parallel with it. The telescoping arm1020 has also been folded down, adjacent to the vertical support post1018 and also parallel with the base 1002. In this highly compact state,this embodiment 1000 can be easily stowed in a variety of differentlocations.

11

FIG. 11A is a front oblique view of an embodiment of the inventionincluding an elastic band whose tension can be adjusted by a hand crank.The embodiment 1100 shares many structural features of the previousembodiments such as its base, swiveling pulley, gripping device, andsome aspects of its frame. However, this frame is unique for beingpositioned at a rear edge of the base 1002, spanning the full width ofthat edge.

While certain elements shown here (such as the frame, for example) areunique to this embodiment 1100, the same functional framework of FIG. 2is present, and achieving the same benefits here as previouslydiscussed. The structural variations of this embodiment 1100 thereforedo not depart from the essence of the inventive concept. Instead, thosevariations commingle with and enhance the effectiveness of thefunctional framework, thereby asserting and demonstrating its value evenmore clearly.

The embodiment shown 1100 includes a base 1102, a frame 1104 hingedlyattached to and supported by the base 1102, a line-swiveling assembly1106 coupled with the base 1102, a gripping device 1108 connected to theframe 1104, and a leaning space 1110 that allows a user to lean theirupper body for full range of exercise motion during any combination ofhip extension and hip abduction, while under continuous resistance fromthe line 1112.

The frame 1104 itself includes such sub-elements as two side supportposts 1116, 1117 connected to and supported by the base 1102, a gripsupport bar 1108 supported by the support posts 1116, 1117, and a pulleyarm 1118, which is attached to and extends from a frame cross bar 1120that spans the space between the two support posts 1116, 1117. The frame1104 also includes support struts 1122, 1123 to support the frame 1104upright, and hinges 1124, 1125 for folding the frame 1104 down.

As with earlier embodiments, the swiveling pulley 1106 engages with aresistance-transmitting line 1112, which can be pulled with anexercising leg via the lower extremity receiving device (LERD) 1114. Theline 1112 is guided vertically upward from the swiveling pulley 1106 toa strategically placed frontal guiding pulley 1126 (the intermediateguiding pulley according to the functional framework) located at thefront terminus of the pulley arm 1118, and is then guided across thepulley arm 1118, and across the elastic band assembly.

An elastic resistance generating assembly includes aresistance-generating pulley assembly, which communicates with theresistance-transmitting line 1112, an elastic resistance band 1128connected to the distal end of the resistance-transmitting line 1112,and finally a tension-adjusting line 1130 connected to the distal end ofthe elastic resistance band 1128. The tension adjusting line 1130 feedsinto a hand crank which can feed the line 1130 the tension of theelastic resistance band 1128 itself.

FIG. 11B is a rear view of the embodiment of FIG. 11A. A rear guidingpulley 1132 attached horizontally to the pulley arm 1118 via a rearpulley guiding pulley housing 1134 receives the line 1112, and it is fedinto the elastic resistance generating assembly, which includes two linepulleys 1140, 1141 three elastic band pulleys 1142, 1143, 1144, and ahand crank 1145 for drawing in the tension adjusting line 1130 andthereby increasing tension of the elastic resistance band 1128.

The elastic resistance generating assembly pulleys and hand crank 1145are attached to the rear surface of the two side support posts 1116,1117. The pulley arm 1118 is capable of turning on an axis 1136, therebyfolding into the plane of the frame. For use, however, it is locked intoplace with a locking pin 1138. To fold the pulley arm into the frame,the locking pin 1138 can be removed. Then, the entire frame can befolded down to the base.

FIG. 11C is a front oblique view of the embodiment of FIG. 11A with itsframe fully collapsed into a stowable position. The pulley arm 1118 hasbeen folded into the plane of the side support arms 1116, 1117 and theentire frame has been folded down to be adjacent to and parallel withthe base 1102. In this highly compact state, this embodiment 1100 can bestowed in a variety of different locations. It can also be carriedsomewhat like a suitcase, with the grip bar 1108 as a handle.

FIG. 12A is a front oblique view of an embodiment of the invention thatcan use the resistance of a general purpose exercise machine. Theembodiment 1200 shares many structural features of the previousembodiments such as its base, swiveling pulley, gripping device, andsome aspects of its frame. However, this embodiment 1200 is unique inthat it does not supply its own resistance-generating element orresistance-transmitting line, but rather incorporates those of anothermachine 1201

While certain elements shown here (such as the frame, for example) areunique to this embodiment 11100, the same functional framework of FIG. 2is present, and achieving the same benefits here as previouslydiscussed. The structural variations of this embodiment 1100 thereforedo not depart from the essence of the inventive concept. Instead, thosevariations commingle with and enhance the effectiveness of thefunctional framework, thereby asserting and demonstrating its value evenmore clearly.

The embodiment shown 1200 includes a base 1202, a frame 1204 hingedlyattached to and supported by the base 1202, a line-swiveling assembly1206 coupled with the base 1202, a gripping device 1208 connected to theframe 1204, and a leaning space 1210 that allows a user to lean theirupper body for full range of exercise motion during any combination ofhip extension and hip abduction, while under continuous resistance fromthe line 1212.

The frame 1204 itself includes such sub-elements as two support posts1216, 1217 hingedly connected to and supported by the base 1202, a gripsupport bar 1208 supported by the support posts 1216, 1217, and a pulleycross arm 1218, which is attached to the right support post 1217. Theframe 1204 also includes a support wing 1220 hingedly attached to theright support post 1217, which can help counter torque that is generatedby the load-bearing line 1212 running off-center on the base 1202.

The support posts 1216, 1217 are connected via a bottom supportivecrossbar 1222, which stands on the base 1202 and supports the frame 1204in its upright and use-ready state, but which lifts off the base whenthe frame 1204 is folded down. A base cutout 1224 enables the embodiment1200 to get close to a neighboring machine 1201 whose own cable connectsto the line 1212, and its associated liftable weight, while hinges 1226enable the frame 1204 to fold down or be lifted upright.

As with earlier embodiments, the swiveling pulley 1206 engages with aresistance-transmitting line 1212 that can be pulled with an exercisingleg via the lower extremity receiving device (LERD) 1214. The line 1212is guided vertically upward from the swiveling pulley 1206 to astrategically placed frontal guiding pulley (the intermediate guidingpulley according to the functional framework) located at the frontterminus of the pulley cross bar, and then guided across the frame 1204:horizontally to a rear guiding pulley located at the rear terminus ofthe pulley cross arm 1218.

From the rear guiding pulley, the resistance-transmitting line 1012 isguided vertically upward. The line 1212 for this embodiment 1200connects to a line from a neighboring machine 1201, which in this figureis a multipurpose weight machine. As the 1212 line is guided upward fromthe embodiment 1200 and runs into a new line, the new line encounters asliding pulley 1228 which is capable of sliding up and down a verticaltrack. From there, the line 1212 is fed through a pulley assembly anddown to liftable weight.

The embodiment shown 1200 enhances the exercise options of themultipurpose machine 1201. If a user tried performing hip extensionand/or hip abduction with the multipurpose machine 1201 itself, they nothave a grip to enable tripod posture, nor would they have the space tolean forward during hip extension. Unable to execute the proper postureduring hip extension, a user would naturally flex their knee and engagetheir hamstring, at the expense of the gluteal muscles.

Furthermore, hip abduction would be just as severely compromised withouta true gripping device that a user could grasp to counter the torquecreated on their body from their abducting leg. In both of these cases,the multipurpose machine 1201 would not provide an optimal glutealexercise experience. When the multipurpose machine 1201 is supplementedwith the present embodiment 1200, however, great value is added to theuser's gluteal exercise repertoire, with such a lightweight device.

FIG. 12B is a front oblique view of the embodiment of FIG. 12A with itsframe fully collapsed into a stowable position. The pulley arm 1218 hasbeen folded into the plane of the support arms and the entire frame hasbeen folded down to be adjacent to and parallel with the base 1102. Thesupport wing 1220 has been folded away from its stopper 1230 and downagainst the rest of the frame and the base 1202. In this highly compactstate, this embodiment 1100 can be stowed discreetly in a variety ofdifferent locations.

What is claimed is:
 1. A stowable lower body fitness apparatus,comprising: a base; a frame coupled to and supported by the base, theframe being capable of collapsing into a stowable position that issubstantially adjacent to and substantially parallel with the base; acable-swiveling assembly coupled with the base, the cable-swivelingassembly being configured to engage with a resistance-transmittingcable, to enable a pullable end of the cable to swivel about a verticalswivel axis to allow a user to pull the pullable end with an exercisingleg to perform any combination of hip extension and hip abduction from asingle standing position; a gripping device connected to the frame, thegripping device including a plurality of grippable areas positionedalong a substantially horizontal grip locus, the grip locus beingsufficiently positioned relative to the swivel axis to allow the user tostabilize themselves in a tripod posture formed by both arms and astanding leg during the any combination of hip extension and hipabduction; and a leaning space passing through the swivel axis, theleaning space having sufficient volume to allow the user to lean theirupper body to achieve full range of exercise motion during the anycombination of hip extension and hip abduction.
 2. The fitness apparatusof claim 1, wherein the cable-swiveling assembly and the frame areconfigured to enable a user to pull the pullable end of the cable withan exercising leg to perform hip flexion.
 3. The fitness apparatus ofclaim 1, further comprising a resistance adjustment system.
 4. Thefitness apparatus of claim 1, wherein the cable-swiveling assemblyincludes a swiveling pulley coupled with the resistance-transmittingcable, the swiveling pulley being free to swivel about the swivel axis.5. The fitness apparatus of claim 1, further comprising an intermediateguiding pulley positioned no higher than substantially hip height. 6.The fitness apparatus of claim 1, further comprising aresistance-activating pulley assembly coupled with the frame, theresistance-activating pulley assembly being configured to engage withthe resistance-transmitting cable to facilitate activation of aresistance-generating element.
 7. The fitness apparatus of claim 1,wherein the resistance transmitted by the resistance-transmitting cableis generated by lifting of an exercise weight that is connected to aresistance-bearing end of the resistance-transmitting cable.
 8. Thefitness apparatus of claim 1, wherein the resistance transmitted by theresistance-transmitting cable is generated by stretching of an elasticresistance band that is connected to a resistance-bearing end of theresistance-transmitting cable.
 9. The fitness apparatus of claim 1,wherein the resistance transmitted by the resistance-transmitting cableis generated by bending of a flexible resistance rod that is connectedto a resistance-bearing end of the resistance-transmitting cable. 10.The fitness apparatus of claim 1, wherein the resistance transmitted bythe resistance-transmitting cable is generated by twisting of atorsional resistance disc that is connected to a resistance-bearing endof the resistance-transmitting cable.
 11. The fitness apparatus of claim1, wherein the pullable end of the resistance-transmitting cable isconnected to a lower extremity receiving device, the lower extremityreceiving device being configured to receive the user's lower extremityand thereby engage with the user's leg.
 12. The fitness apparatus ofclaim 1, wherein the gripping device is configured to support a userduring hip adduction.
 13. The fitness apparatus of claim 1, wherein thegripping device includes a straight bar positioned along a horizontalgrip axis.
 14. The fitness apparatus of claim 1, wherein the grippingdevice includes a plurality of handlebars positioned along the griplocus.
 15. The fitness apparatus of claim 1, wherein the gripping deviceincludes two grippable areas positioned substantially at least shoulderswidth apart along the grip locus.
 16. The fitness apparatus of claim 1,wherein the grip locus is substantially at least forearm length from theswivel axis.
 17. The fitness apparatus of claim 1, wherein the grippingdevice is height-adjustable.
 18. The fitness apparatus of claim 1,further comprising a swivel-grip displacement adjustment system, theswivel-grip adjustment system being configured to enable adjustment ofdisplacement between the swivel axis and the grip locus.
 19. A stowablelower body fitness apparatus, comprising: a base; a frame coupled to andsupported by the base, the frame being capable of collapsing into astowable position that is substantially parallel with and adjacent tothe base; a swiveling pulley coupled with the base, the swiveling pulleybeing configured to engage with a resistance-transmitting cable, toenable a pullable end of the cable to swivel about a vertical swivelaxis to allow a user to pull the pullable end with an exercising leg toperform full range of motion for any combination of hip extension andhip abduction under resistance from a single standing position thatsubstantially straddles the swivel axis; a weightlifting pulley assemblycoupled with the frame, the weightlifting pulley assembly beingconfigured to engage with the cable to facilitate lifting of a liftableexercise weight when the pullable end is pulled with sufficient force; agripping device connected to the frame, the gripping device including aplurality of grippable areas positioned along a substantially horizontalgrip locus, the grip locus being sufficiently positioned relative to theswivel axis to allow the user to stabilize themselves in a tripodposture formed by both arms and a standing leg during the anycombination of hip extension and hip abduction; and a leaning spacepassing through the swivel axis, the leaning space having sufficientvolume to allow the user to lean their upper body to achieve full rangeof exercise motion during the any combination of hip extension and hipabduction.
 20. A stowable lower body fitness apparatus, comprising: abase; a frame coupled to and supported by the base, the frame beingcapable of collapsing into a stowable position that is substantiallyparallel with and adjacent to the base; a swiveling pulley coupled withthe base, the swiveling pulley being configured to engage with anresistance-transmitting cable, to enable a pullable end of the cable toswivel about a vertical swivel axis to allow a user to pull the pullableend with an exercising leg to perform full range of motion for anycombination of hip extension and hip abduction under resistance from asingle standing position that substantially straddles the swivel axis; aband-stretching pulley assembly coupled with the frame, theband-stretching pulley assembly being configured to engage with thecable to facilitate stretching of an elastic resistance band when thepullable end is pulled with sufficient force; a gripping deviceconnected to the frame, the gripping device including a plurality ofgrippable areas positioned along a substantially horizontal grip locus,the grip locus being sufficiently positioned relative to the swivel axisto allow the user to stabilize themselves in a tripod posture formed byboth arms and a standing leg during the any combination of hip extensionand hip abduction; and a leaning space passing through the swivel axis,the leaning space having sufficient volume to allow the user to leantheir upper body to achieve full range of exercise motion during the anycombination of hip extension and hip abduction.